# Alpen Testnet RPC and network details

Source: https://www.alchemy.com/rpc/alpen-testnet

Alpen is a Bitcoin rollup built by Alpen Labs that brings an EVM-compatible execution layer to Bitcoin. Secured by zero-knowledge proofs and using BTC as its gas token, Alpen lets developers build expressive smart contract applications on top of Bitcoin.

## Network details

- Network: Testnet
- Chain ID: 20310
- Environment: Testnet
- Category: L2
- Native token: BTC
- Gas token: BTC

## Endpoints

- Alchemy RPC: https://alpen-testnet.g.alchemy.com/v2/API_KEY
- Alchemy WebSocket: wss://alpen-testnet.g.alchemy.com/v2/API_KEY

Replace API_KEY with a key from https://dashboard.alchemy.com/signup.

## Alchemy product support

Supported on Alpen Testnet: RPC API, Debug API, Trace API, Websockets.

Not currently supported: Transaction receipts API, Block Timestamp API, User OP Simulation API, Prices API, Bundler API, Token API, NFT API, gRPC, Gas Manager, Webhooks, Transfers API.

## Build on Alchemy

Alchemy offers Alpen testnet RPC endpoints and websockets, so you can access reliable and accurate onchain data. In addition, we support Alpen with our Debug and Trace APIs, so you can more easily inspect and debug onchain transactions.

## Links

- Official docs: https://docs.alpen.org/
- Block explorer: https://explorer.testnet.alpen.org